Vending-machine.



C. E. DAVISON. VENDING MACHINE. APPLICATION FILED MAR. s. 1909.

Patented Aug. 80, 1910.

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G. E. DAVISON. VENDING MACHINE.

APPLICATION FILED MAB. s, 1909.

Patented Aug. 30, 1910.

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UNITED STATES PATENT OFFICE.

CLINTON E. DAVISON, OF LITTLE ROCK, IOWA.

VENDIN G-MACHINE To all whom it may concern:

Be it known that I, CLINTON E. DAVISON, a citizen of the United States,residing at Little Rock, in the county of Lyon and State of Iowa, haveinvented certain new and useful Improvements in Vending Machines, and dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, and to the letters and figures ofreference marked thereon.

My invention relates to vending machines of the class in which a motoris employed for the delivery of the articles to be vended, the motorbeing automatically set in motion by the placing in the machine of theproper coin, and automatically stopped when the desired article ornumber of articles have been delivered, and while I have designed themachine which I have selected as an embodiment of my invention for thevending of flat articles, such as writing paper, en- Velops, postcards,etc., it is to be understood that I do not restrict myself to theemployment of my invention only in a machine for this particularpurpose, but reserve the right to whatever use or uses my invention orparts thereof may be put, irrespective of the precise form of themachine in its entirety or the parts thereof.

My object, more particularly, has been to simplify the mechanical partsconstituting a machine of this description, without any sacrifice of itsreliability or efficiency, these qualities indeed being increased, aswell as the cost of manufacture reduced, by the simplification which Ihave effected.

Referring to the accompanying drawings, Figure 1 is a top plan view of avending machine embodying my invention, and Fig. 2 is a view thereofpartly in end elevation and partly in cross section.

In the interest of compactness and attractiveness, the casing 10 of themachine shown in the drawings is oblong in shape, and con sists of abottom or base of wood and side walls and top formed principally ofglass, but it is to be. understood that the case may be of any desireddesign and of any suitable material. Mounted in the casing 10 toward theback thereof, is a spring motor consisting of suitable frame plates 11,a spring 12, and a main arbor 13 on which the spring and the center ormain driving gear wheel 14 are mounted. Instead of the usual springSpecification of Letters Patent.

Application filed March 9, 1909.

Patented Au 30, 1910.

Serial No. 482,218.

barrel inclosing the spring, I employ simply a bent plate 15 fastened tothe frame and engaging the side of the spring opposite the center wheelto confine the spring from displacement in an axial direction. Atdiametrically opposite points in a horizontal plane, the main or centerwheel 14: meshes with pinions 16 and 17, respectively, on twohorizontally extending shafts 1S and 19, on each of which shafts ismounted a comparatively long screw or worm 20, the screws or worms beingduplicates, the articles to be vended being placed upon and engaged bythe thread of the screws, so that by the revolution of the latter thearticles will be moved horizontally toward the discharge opening 21 atthe front of the machine, and the foremost article precipitated from thescrews and thereby delivered from the machine.

Mounted on the screws is an article-supporting and feeding device in theform of a traveler that consists of a vertically arranged plate orstandard 24 having at its bottom two openings or notches 25 each of asize to fit over a screw and its edges to be engaged by the threadthereof, the two openings or notches being of course spaced apart adistance corresponding with the distance between the two screws. Saidtraveler by the revolution of the screws will be moved forward and thusaid in carrying the collection of vendable articles resting upon thescrews, and is of course a necessary device in a machine for vendingsuch flexible articles as sheets of paper, envelops, etc. It may readilybe lifted from the screw thread and moved either forward or backward, asoccasion may require.

Near the rear end of the screw shaft 19 is a gear 26 which, through atrain of gears, gears said shaft to a speed regulator or governor, suchas a fan or vane 27 mounted 011 a shaft or arbor 28, and thereby therate of revolution of the motor and the screws determined or regulated,and also at the rear end of said screw shaft 19 is a snail cam 29 havinga radially extending notch 30 which when engaged by a pin 31 on a coinactuated lever 32, prevents the operation of the motor and thus thefeeding and discharging action of the machine. The lever pin 31 is alsoarranged to engage one of the blades of the fan or vane, and when in engagement therewith to arrest its revolution.

The coin-operated lever 32 is pivoted intermediate its ends on a stud orpin 33, and its weight is so distributed that it is heaviest on the sideof the pivot 33 which carries the pin 31, so that the normal tendency ofthe lever is to move in a direction to cause its pin 81 to enter the camnotch and to engage the same and the regulator fan. When a proper coinrests upon the opposite end of the lever 32, it will overbalance thepincarrying end thereof and lift the pin out of the notch and away fromthe vane and thus free the motor, and the pin when thus raised being inthe path of the periphery of the snail cam, the revolution of the latterwill operate to lift the pin-carrying end of the lever still higher andlower the coin-engaged end until a point in the movement of the latteris reached which will permit the passage from the lever of the coin,whereupon under the superior weight of the pincarrying end of the leverthe pin will be again moved into engagement with the notch of the camand the governor fan, and thereby arrest the operation of the machine,the machine thus being in operation during one revolution of the snailcam and the screws or worms. hen the pin-carrying end of the lever 32 israised it encounters a light wire spring 3% that by its engagement withthe lever insures its steady movement and prevents the precipitatedischarge of the coin. The coin-engaged end of the lever 32 is at theinner terminal of the coin chute 35, that extends from the front wall ofthe machine near the top thereof rearwardly and downwardly at a gentleincline, which will assure the rolling of the coin on edge through thechute. At its extreme rear portion, the chute extends downward atasharper angle and terminates in a vertical. portion into which the endof the lever 32 projects.

Having thus described my invention, what I claim is- 1. In a vendingmachine, the combination of a motor, a coin guide, a rotary cam drivenby the motor, a lever extending from the coin guide at a point tointercept a coin to said cam having a projection that projects from oneside of the cam to the other and cooperates therewith and a motorgovernor adapted to be engaged by said projection.

2. In a vending machine, the combination of a motor, a snail camconnected therewith having a radially disposed notch, a coin guide, alever extending from a point to intercept acoin to said snail cam havinga projection adapted to extend through the cam notch and a motorgovernor adapted to be engaged by said projection.

3. In a vending machine, the combination of a motor, a coin guide, arotary cam driven by the motor, a lever extending from the coin guide ata point to intercept a. coin to said cam that has a projection thatprojects from one side of the cam to the other and cooperates therewith,a motor governor adapted to be engaged by said projection and a yieldinglever engaging device in position to engage the lever when it is movedby the cam.

In testimony whereof I affix my signature in presence of two witnesses.

CLINTON E. DAVISON.

Witnesses:

O. A. MORSE, GEO. E. TUCKER.

